Interesting tutorial

[cuckooflew]

That is a good one, for bash script, I was hoping for C (edited, I meant to say C) , but I did not specify that, so yes that is one way to do it,... I still have not tried search anything yet, I am sure there something in some tutorial,... but I need to take a nap just now..my medicine makes me sleepy.

[Head_on_a_Stick]

That is a good one, for bash script

Thanks but I don't like bash. POSIX sh ftw!

I was hoping for C++

Don't bother with C++, it's rubbish: http://harmful.cat-v.org/software/c++/

Plain C is better. Perhaps also look at Go or Rust. I can't use either though, unfortunately

[cuckooflew]

Thanks
Found one, and it is C , not C++: (I meant C, don't know why I said c++ )

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#include <stdio.h>

int main(void)
{
    char name[20];
    printf("Hello. What's your name?\n");
    //scanf("%s", &name);  - deprecated
    fgets(name,20,stdin);
    printf("Hi there, %s", name);
    return 0;
}

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parrot$ ./name             
Hello. What's your name?
cuckoo
Hi there, cuckoo
parrot$ 

[LE_746F6D617A7A69]

That is a good one, for bash script

Thanks but I don't like bash. POSIX sh ftw!

Bash has a POSIX mode too - but I don't like it - it's better to live on the edge

Don't bother with C++, it's rubbish: http://harmful.cat-v.org/software/c++/

Oh no! C++XX is just as modern as Java - it allows the programmer to focus on the problem, instead on the code...

...but hmm, aren't the programmers expected to write a code?

[cuckooflew]

That is a good one, for bash script

Thanks but I don't like bash. POSIX sh ftw!

I was hoping for C++

Don't bother with C++, it's rubbish: http://harmful.cat-v.org/software/c++/

Plain C is better. Perhaps also look at Go or Rust. I can't use either though, unfortunately

Your right, I just did not notice:

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#!/bin/sh

With shell scripts I don't use the

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#!/bin/sh

Is that bad, ? I just use this part EG:

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echo 'Please enter your name'
IFS= read -r reply
echo "Hello $reply, welcome. Please hit enter to exit."
while true; do
   IFS= read -r key
   case "$key" in
      "") echo 'Thank you'
         exit 0
         ;;
      *) echo 'Please hit enter to exit...'
         ;;
   esac
done

[cuckooflew]

So anyway, back to C , here is something else I found, I did not write it, but don't really know who did, any way, :

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   #include <stdio.h>
   #include <stdlib.h>
   int main (void)
   {
    char name[20];
    printf("Hello. What's your name?\n");
    fgets(name,20,stdin);
    printf("Hello, %s", name);
    int i;
    int response;
    int correctAnswers = 0;
    int incorrectAnswers = 0;

    printf("\nMath Quiz\n");
    printf("Please enter # of problems you would wish to try:");
    scanf("%d", &response);

    if(response == 0)
    {
        printf("\nThanks for playing!\n");
        return 0;
    }

    for(i=0; i<response; i++)
    {
        int answer = 0;
        srand(time(0));
        int a = rand() % 12;
        int b = rand() % 12;
        printf("\n%d * %d = ",a ,b);
        scanf("%d", &answer);
        if((a * b) == answer){
            printf("\nCongratulations You are correct!\n");
            correctAnswers++;
        }
        else{
            printf("Sorry you were incorrect!\n");
            incorrectAnswers++;
        }

    }
    printf("\n\nYour Results:\n\n\n");
    printf("Number Incorrect: %d\n", incorrectAnswers);
    printf("Number Correct: %d\n", correctAnswers);
    if(correctAnswers > incorrectAnswers){
        printf("You Passed!  \nGood work!\n\n", name);
    }
    else{
        printf("You did not pass!\nYou need more work!\n\n");
    }

    return 0;
}

There is a problem with it though, it does not remember the "name",

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printf("You Passed!  \nGood work!\n\n", name);

On this line, ....
Also a question about when we compile,... for example on this, to compile use:

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math2 compile instruction
gcc math2.c -lpthread
to run it: ./a.out
 

On the earlier example, we used :

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gcc -o hello hello.c
use ./hello to run


The question is, what determines the compile method, ? How do we not what method to use ? I suppose this might be answered in the gcc manual, and the options we use.

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  -o file
           Place output in file file.  This applies regardless to whatever
           sort of output is being produced, whether it be an executable file,
           an object file, an assembler file or preprocessed C code.

           If -o is not specified, the default is to put an executable file in
           a.out, the object file for source.suffix in source.o, its assembler
           file in source.s, a precompiled header file in source.suffix.gch,
           and all preprocessed C source on standard output.
 

Ahh ok, well that makes sense, and also explains why using

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gcc -o math math.c 

worked the same, except for the out put,...hmm.
Now, I know this would seem extremely boring to more advanced "programmers", and even to a beginner, but for the beginner, these are simple examples, and you should be able to follow them , and "build" your first working programs, if you can not, then of course you need to show what you did, and ask. To me , it was exciting, when my first programs actually worked, and I found that I stayed more interested, and was eager to continue when I had code that actually worked, where at first, before I knew better, I tried jumping into advanced code, and not anything I wrote, just copy/paste,...so when it did not work, I had no clue as to why, and it was just plain frustrating, I quickly gave up, saying "this is too complicated for me". Hope fully this makes sense, and it is why we say "Learn to crawl before you try to walk", When a baby is forced to try walking, to soon, they fall down, alot, and get discouraged, and maybe even scared to even try to stand, and walk, when they should be able to. .....guess for now that is about it.

[LE_746F6D617A7A69]

There is a problem with it though, it does not remember the "name",

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printf("You Passed!  \nGood work!\n\n", name);

Actually it does not *print* the name, because there's no appropriate format specifier in the format string: %s
If You would compile the code with -Wall, You'll get a warning: "too many arguments for format"

Correct code should look like this:

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printf("%s: You Passed!\nGood work!\n\n", name);

A good practice is to enable -Wall -Wextra, at least in test or debug builds.

[cuckooflew]

Ok, thanks, and that makes sense

[cuckooflew]

I still needed to change this:

Correct code should look like this:

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printf("%s: You Passed!\nGood work!\n\n", name);

To this:

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printf(" You Passed!\nGood work!%s \n\n", name);

to get it to display the text the way I want,...

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Number Incorrect: 0
Number Correct: 1
 You Passed!
Good work!cuckoo
 

parrot$ 

But that is something one can experiment with, using the escape sequence \n or \n\n in their c code.